Need octave analysis in signal spectrum, not power

[Anatoly2]

I have looked into this before, but my needs have changed slightly, so I would like to ask again:

Using this reference, http://www.colingordon.com/pdf/Gordon-SPIE99.pdf, figure 1

I would like my vibration analysis code to plot the octave spectrum in the same units as captured signal (in this case, microns/sec)  If I use the IEC 1/n VI from the SVT, I can only see the power spectrum on the output (signal squared). 

Is there a way for me to produce the octave analysis spectrum in signal units?  please help

(PS this is cross-posted in multifunction DAQ forum, I followed the wizard and the thread was placed there, i didn't notice at first)